Shower curtain



FIG. 1 is a perspective view of a shower curtain showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is an enlarged detail view of the area labeled 8 in FIG. 1; and,

FIG. 9 is a perspective view thereof, shown in a position of use with environment.

The broken lines illustrate environmental features that form no part of the claimed design. 

CLAIM The ornamental design for a shower curtain, as shown and described. 